Buggy code:
public class ReadWriteCSV < CellProcessors > { private static Logger logger = Logger . getLogger ( ReadWriteCSV . class ) ; private static ErrorLog elog = new ErrorLog ( ) ; private String collectionCode = null ; public static final String [ ] ClassifiedTweetCSVHeader = new String [ ] { "tweetID" , "message" , "userID" , "userName" , "userURL" , "createdAt" , "tweetURL" , "crisisName" } ; public static final String [ ] ClassifiedTweetIDCSVHeader = new String [ ] { "tweetID" , "crisisName" } ; public static final int FIXED_CLASSIFIED_TWEET_HEADER_SIZE = ReadWriteCSV . ClassifiedTweetCSVHeader . length ; public static final int FIXED_CLASSIFIED_TWEET_ID_HEADER_SIZE = ReadWriteCSV . ClassifiedTweetIDCSVHeader . length ; public static final int VARIABLE_HEADER_SIZE = 7 ; private static final int DEFAULT_CLASSIFIER_COUNT = 1 ; private static int countWritten = 0 ; public ReadWriteCSV ( String collectionCode ) { } public ReadWriteCSV ( ) { } private static CellProcessor [ ] getProcessors4TweetIDSCCSV ( ) { } private static CellProcessor [ ] getCollectorTweetsProcessors ( ) { } private static CellProcessor [ ] getClassifiedTweetVariableProcessors ( final int count ) { } private static CellProcessor [ ] getProcessors4ClassifiedCCSV ( ) { } private static CellProcessor [ ] getProcessors4ClassifiedTweetIDSCCSV ( ) { } public ICsvBeanWriter getCSVBeanWriter ( String fileToWrite ) { } public ICsvMapWriter getCSVMapWriter ( String fileToWrite ) { } public ICsvBeanWriter writeCollectorTweetIDSCSV ( ICsvBeanWriter beanWriter , List < Tweet > tweetsList , String collectionDIR , String fileName ) { } public ICsvMapWriter writeClassifiedTweetIDsCSV ( String [ ] runningHeader , ICsvMapWriter mapWriter , final List < ClassifiedTweet > tweetsList , String collectionDIR , String fileName ) { } public ICsvBeanWriter writeCollectorTweetsCSV ( List < Tweet > tweetsList , String collectionDIR , String fileName , ICsvBeanWriter beanWriter ) { } public ICsvMapWriter writeClassifiedTweetsCSV ( String [ ] runningHeader , List < ClassifiedTweet > tweetsList , String collectionDIR , String fileName , ICsvMapWriter mapWriter ) { } public String [ ] setClassifiedTweetHeader ( String [ ] header , int fixedHeaderSize , ClassifiedTweet tweet ) { } private Map < String , Integer > getClassifierCountForCrisis ( String collectionCode ) { Map < String , Integer > jsonResponse = null ; Client client = ClientBuilder . newBuilder ( ) . register ( JacksonFeature . class ) . build ( ) ; try { WebTarget webResource = client . target ( ( ( ( SystemProperties . taggerMainUrl ) + "//crisis//attributes//count//" ) + collectionCode ) ) ; Response clientResponse = webResource . request ( APPLICATION_JSON ) . get ( ) ; jsonResponse = clientResponse . readEntity ( Map . class ) ; ReadWriteCSV . logger . info ( ( "Tagger<seq2seq4repair_space>API<seq2seq4repair_space>returned:<seq2seq4repair_space>" + jsonResponse ) ) ; <START_BUG> if ( jsonResponse . containsKey ( "count" ) ) { <END_BUG> return jsonResponse ; } else { jsonResponse = new HashMap < String , Integer > ( ) ; jsonResponse . put ( "count" , ( - 1 ) ) ; } } catch ( Exception e ) { ReadWriteCSV . logger . info ( ( "Unable<seq2seq4repair_space>to<seq2seq4repair_space>get<seq2seq4repair_space>classifiers<seq2seq4repair_space>count<seq2seq4repair_space>from<seq2seq4repair_space>Tagger<seq2seq4repair_space>API,<seq2seq4repair_space>will<seq2seq4repair_space>try<seq2seq4repair_space>based<seq2seq4repair_space>on<seq2seq4repair_space>first<seq2seq4repair_space>read<seq2seq4repair_space>tweet,<seq2seq4repair_space>jsonResponse<seq2seq4repair_space>=<seq2seq4repair_space>" + jsonResponse ) ) ; jsonResponse = new HashMap < String , Integer > ( ) ; jsonResponse . put ( "count" , ( - 1 ) ) ; } return jsonResponse ; } public int getClassifedTweetHeaderSize ( int fixedHeaderSize , ClassifiedTweet tweet ) { } public int getClassifedTweetHeaderSize ( int fixedHeaderSize , int numberOfClassifiers ) { } private Map < String , Object > createClassifiedTweetCsvMap ( String [ ] header , ClassifiedTweet tweet ) { } private Map < String , Object > writeVariableAttributeData ( final String [ ] header , final int startIndex , Map < String , Object > tweetToWrite , final ClassifiedTweet tweet ) { } private Map < String , Object > createClassifiedTweetIDCsvMap ( String [ ] header , ClassifiedTweet tweet ) { } }

Fix:
if ( ( jsonResponse . containsKey ( "count" ) ) && ( ( jsonResponse . get ( "count" ) ) >= 0 ) ) {